PVC zaj duab xis yog dab tsi thiab nws cim li cas

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Cov ntaub ntawv ntim tau dhau los ua ib qho ntawm cov khoom tseem ceeb tau siv los ntawm kev lag luam hauv xyoo pua 20th. Muaj txhua qhov laj thawj los ntseeg tias lawv qhov tseem ceeb tsuas yog nce ntxiv hauv lub xyoo pua no. PVC (polyvinyl chloride) zaj duab xis nyob ib qho chaw tshwj xeeb ntawm cov ntaub ntawv zoo li no.

Ntim yuav tsum ua ntau yam haujlwm. Nws lub hom phiaj tseem ceeb yog los tiv thaiv cov khoom los ntawm kev puas tsuaj sab nraud, kev ua qias tuaj, kev puas tsuaj thaum lub sij hawm thauj mus los thiab thaum lub sij hawm muag khoom. Lwm yam tseem ceeb uas cuam tshuam rau qhov kev xav ntawm tus neeg yuav khoom kuj tseem ceeb, xws li qhov zoo nkauj zoo nkauj thiab qhov tseeb tias tsis muaj leej twg tau siv lossis txawm kov cov khoom uas tau xaiv yav dhau los. PVC zaj duab xis sib piv nrog polyethylene zaj duab xis nyob rau hauv cov nqe lus ntawm cov khoom kho qhov muag zoo dua thiab muaj peev xwm siv rau ntim ntau yam khoom noj.

Tus txheeb ze simplicity ntawm thev naus laus zis pab txhawb kev sib kis ntawm polyvinyl chloride. Cov khoom pib granulated (polymer) nkag mus rau hauv extruder qhov twg nws yog yaj. Tom qab ntawd ib lub npuas loj yog tshuab tawm ntawm nws, ua ib qho ntawm cov txheej txheem txuas ntxiv, txiav mus rau qhov dav uas xav tau, thiab qhov txhab ntawm qhov chaw.

PVC zaj duab xis siv hauv cov khoom nojkev lag luam thiab kev lag luam, nws yog tsim nyob rau hauv ob hom: stretch thiab tshav kub-shrinkable. Txhua tus muaj nws lub hom phiaj.

Stretch - PVC zaj duab xis yog siv los qhwv cov khoom yam tsis tau tsim cov vuam. Nws yog tus cwj pwm los ntawm cov khoom siv tshwj xeeb, xws li kev muaj peev xwm ncab thiab interlayer adhesion vim qhov tshwm sim ntawm electrostatic teb thiab intermolecular attraction. Nws yog dav siv los ntawm cov koom haum ua lag luam los tsim kev nyiam huv rau kev khaws cia thiab muag khoom.

PVC shrink zaj duab xis yog tus cwj pwm los ntawm nws lub peev xwm los txo qis hauv qhov ntev geometric nyob rau hauv kev cuam tshuam ntawm tshav kub. Txhawm rau ntim cov khoom rau hauv nws, ob txoj haujlwm thev naus laus zis tseem ceeb yuav tsum tau ua: solder cov npoo thiab ntsws. Nws yog tsim nyob rau hauv daim ntawv ntawm ib nrab lub tes tsho (uas yog, folded nyob rau hauv ib nrab nyob rau hauv dav) los yog lub tes tsho qhov txhab rau hauv yob. Kev sib khi yog ua los ntawm cov neeg siv khoom lag luam, feem ntau lub kaum sab xis vuam, thiab cov rooj zaum feem ntau yog nqa tawm nrog cov kwj ntawm cua sov.

Nyob ntawm qhov xwm txheej ntawm cov khoom yuav tsum tau ntim, cov neeg siv khoom xaiv qhov loj me los ntawm ntau yam muaj nyob hauv khw. Cov yam ntxwv ntawm shrink qhwv feem ntau yog ntshiab los ntawm daim ntawv lo. Piv txwv li, PVCT code 40075015 luam tawm ntawm daim ntawv lo txhais tau hais tias lub yob muaj ib nrab lub tes tsho dav ntawm 40 cm, ib tug ntev ntawm 750 m, thiab ib txheej thickness ntawm 15 microns.

PVC zaj duab xis manufacturers yuav tsum qhia qhov hnyav. Nws thiaj li tshwm sim keeb kwm tias PVC zaj duab xis muag los ntawm qhov hnyav.

hom kab no muajntim cov ntaub ntawv thiab qhov tsis zoo - nws tsis tuaj yeem luam cov ntawv lossis cov duab rau ntawm cov yeeb yaj kiab, vim tias cov ntawv sau yuav raug cuam tshuam yog tias qhov ntev geometric hloov. Txawm li cas los xij, nws yooj yim los lo ib daim ntawv lo rau ntawm qhov chaw du, lossis, hloov pauv, muab tso rau hauv qab. Thaum xaiv cov qauv ntawm cov khoom tsim, koj yuav tsum nco ntsoov tias shrink zaj duab xis tsim ib txheej txheej optically pob tshab uas ntseeg tau tiv thaiv khawb, plua plav, av, thiab muab ib qho, txawm tias lub thawv faded, glossy ci.

Cov cim ntawm PVC stretch zaj duab xis yog hais txog tib yam li cov yeeb yaj kiab shrink, qhov sib txawv yog tias nws raug mob hauv ib txheej, thiab yog li, raws li txoj cai, qhov ntev ntawm cov yob yog ob zaug ntev.